One of the many beloved idiosyncrasies of my 300SD is that the wipers occasionally activate for strange reasons. Anything from starting the car, to turning on the lights, to the AC compressor engaging can sometimes cause them to spontaneously cycle once or twice. Given the infrequency, this rather benign behavior was low on my list of priorities... until today.
It's now happening in response to almost any change in electrical system draw, and they sometimes keep running for a minute or longer with no way to stop them. We had our first real cold snap today (mid twenties all day), and I do wonder if that exacerbated the problem?
The intermittent wiper relay is at the top of my list, but since I don't have a spare handy, I thought I'd consult the experts before spending any money. The wipers do work just fine on all speeds when controlled by the wiper switch. A search of this and other forums didn't turn up anything similar I'm afraid. I've included a picture of the wipers not running for reasons unknown to me.
It's now happening in response to almost any change in electrical system draw, and they sometimes keep running for a minute or longer with no way to stop them. We had our first real cold snap today (mid twenties all day), and I do wonder if that exacerbated the problem?
The intermittent wiper relay is at the top of my list, but since I don't have a spare handy, I thought I'd consult the experts before spending any money. The wipers do work just fine on all speeds when controlled by the wiper switch. A search of this and other forums didn't turn up anything similar I'm afraid. I've included a picture of the wipers not running for reasons unknown to me.